Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Louisville to Sydney from $625

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Louisville to Sydney departing on 8/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Louisville to Sydney

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
11:17 am - 6:50 am
SDF
-
SYD
29h 33m
2 stops
Delta Logo
9:15 am - 11:56 pm
SYD
-
SDF
28h 41m
2 stops
$1,191Delta
Wed, Aug 5 - Wed, Aug 12
Multiple Airlines Logo
4:01 pm - 6:55 am
SDF
-
SYD
24h 54m
1 stop
Multiple Airlines Logo
12:00 pm - 6:18 pm
SYD
-
SDF
20h 18m
1 stop
$1,205Multiple Airlines
Wed, Aug 5 - Wed, Aug 12
Multiple Airlines Logo
7:30 pm - 6:55 am
SDF
-
SYD
21h 25m
1 stop
Multiple Airlines Logo
6:25 am - 9:25 pm
SYD
-
SDF
29h 00m
3 stops
$1,223Multiple Airlines
Thu, Aug 20 - Thu, Aug 27
Qantas Airways Logo
7:00 pm - 6:55 am
SDF
-
SYD
21h 55m
1 stop
Qantas Airways Logo
6:25 am - 10:17 pm
SYD
-
SDF
29h 52m
2 stops
$1,238Qantas Airways
Sat, Aug 22 - Sat, Aug 29
Qantas Airways Logo
7:03 pm - 6:55 am
SDF
-
SYD
21h 52m
1 stop
Qantas Airways Logo
5:20 pm - 10:17 pm
SYD
-
SDF
42h 57m
2 stops
$1,246Qantas Airways
Wed, Aug 5 - Tue, Aug 11
Qantas Airways Logo
7:00 pm - 6:55 am
SDF
-
SYD
21h 55m
1 stop
Qantas Airways Logo
12:00 pm - 10:17 pm
SYD
-
SDF
24h 17m
1 stop
$1,266Qantas Airways
Sat, Aug 22 - Sat, Aug 29
Qantas Airways Logo
1:42 pm - 6:55 am
SDF
-
SYD
25h 13m
1 stop
Qantas Airways Logo
6:25 am - 3:47 pm
SYD
-
SDF
25h 22m
2 stops
$1,288Qantas Airways
Tue, Dec 1 - Tue, Dec 8
Delta Logo
2:34 pm - 6:50 am
SDF
-
SYD
26h 16m
2 stops
Delta Logo
9:15 am - 12:34 am
SYD
-
SDF
29h 19m
2 stops
$1,291Delta
Thu, Aug 20 - Thu, Aug 27
Delta Logo
3:25 pm - 6:50 am
SDF
-
SYD
25h 25m
2 stops
Delta Logo
10:15 am - 8:51 pm
SYD
-
SDF
25h 36m
2 stops
$1,301Delta
Mon, Aug 10 - Sat, Oct 10
United Airlines Logo
3:50 pm - 7:00 am
SDF
-
SYD
23h 10m
1 stop
United Airlines Logo
9:20 am - 1:33 pm
SYD
-
SDF
20h 13m
1 stop
$1,306United Airlines
Tue, Dec 1 - Tue, Dec 8

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Air New Zealand flights from Louisville to Sydney

Our best Air New Zealand deals on Louisville to Sydney flight tickets
Air New Zealand
Aug 26
SDF9:45 amLouisville Intl
42h 25m
2 stops
SYD6:10 pmSydney Kingsford Smith
Sep 5
SYD10:20 amSydney Kingsford Smith
42h 09m
1 stop
SDF2:29 pmLouisville Intl
$1,711
Air New Zealand
Jul 13
SDF6:15 amLouisville Intl
36h 30m
2 stops
SYD8:45 amSydney Kingsford Smith
Jul 15
SYD11:55 amSydney Kingsford Smith
24h 20m
2 stops
SDF10:15 pmLouisville Intl
$2,550

Qantas Airways flights from Louisville to Sydney

Our best Qantas Airways deals on Louisville to Sydney flight tickets
Qantas Airways
Aug 22
SDF7:00 pmLouisville Intl
21h 55m
1 stop
SYD6:55 amSydney Kingsford Smith
Aug 29
SYD6:25 amSydney Kingsford Smith
29h 52m
2 stops
SDF10:17 pmLouisville Intl
$1,238
Qantas Airways
Aug 5
SDF7:03 pmLouisville Intl
21h 52m
1 stop
SYD6:55 amSydney Kingsford Smith
Aug 11
SYD5:20 pmSydney Kingsford Smith
42h 57m
2 stops
SDF10:17 pmLouisville Intl
$1,246
Qantas Airways
Aug 22
SDF7:00 pmLouisville Intl
21h 55m
1 stop
SYD6:55 amSydney Kingsford Smith
Aug 29
SYD12:00 pmSydney Kingsford Smith
24h 17m
1 stop
SDF10:17 pmLouisville Intl
$1,266

momondo Fare Finder

 
Customize your flight search to find flights from Louisville to Sydney that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated July 10, 2026.
Use the filters below to find and compare flights from Louisville to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 8/5

11:17 am-6:50 am

2 stops29h 33m

Sydney Kingsford Smith

Wed 8/12

9:15 am-11:56 pm

2 stops28h 41m

$1,191

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 8/5

4:01 pm-6:55 am

1 stop24h 54m

Sydney Kingsford Smith

Wed 8/12

12:00 pm-6:18 pm

1 stop20h 18m

$1,205

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Thu 8/20

7:30 pm-6:55 am

1 stop21h 25m

Sydney Kingsford Smith

Thu 8/27

6:25 am-9:25 pm

3 stops29h 00m

$1,223

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 8/22

7:00 pm-6:55 am

1 stop21h 55m

Sydney Kingsford Smith

Sat 8/29

6:25 am-10:17 pm

2 stops29h 52m

$1,238

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 8/5

7:03 pm-6:55 am

1 stop21h 52m

Sydney Kingsford Smith

Tue 8/11

5:20 pm-10:17 pm

2 stops42h 57m

$1,246

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 8/22

7:00 pm-6:55 am

1 stop21h 55m

Sydney Kingsford Smith

Sat 8/29

12:00 pm-10:17 pm

1 stop24h 17m

$1,266

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Tue 12/1

1:42 pm-6:55 am

1 stop25h 13m

Sydney Kingsford Smith

Tue 12/8

6:25 am-3:47 pm

2 stops25h 22m

$1,288

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Thu 8/20

2:34 pm-6:50 am

2 stops26h 16m

Sydney Kingsford Smith

Thu 8/27

9:15 am-12:34 am

2 stops29h 19m

$1,291

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Mon 8/10

3:25 pm-6:50 am

2 stops25h 25m

Sydney Kingsford Smith

Sat 10/10

10:15 am-8:51 pm

2 stops25h 36m

$1,301
Quickest round-trip

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Tue 12/1

3:50 pm-7:00 am

1 stop23h 10m

Sydney Kingsford Smith

Tue 12/8

9:20 am-1:33 pm

1 stop20h 13m

$1,306

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

See travel insights to Sydney from

How to get the cheapest flight ticket from Louisville to Sydney

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Louisville and Sydney?

What is the cheapest month to fly to Sydney?

In general, March is the cheapest month to fly from Louisville to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. If you are unable to visit Sydney during the month of March, then departing from Louisville during the month February is also very affordable. Most momondo users find prices during this month for around $1,228.

Can stopping save me money on Louisville to Sydney flights?

You could potentially save up to 22% on your flight if you consider stops on a Louisville to Sydney flight.

When to book flights from Louisville to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from Louisville to Sydney according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Louisville to Sydney (SDF to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to Sydney

Fastest flight time

21h 25m

Direct flights

None
The fastest flight from Louisville to Sydney takes 21h 25m
There are no direct flights from Louisville to Sydney. There are no popular flight routes from Louisville to Sydney.
Search flight deals

Frequently asked questions about flying from Louisville to Sydney

  • How far is Louisville Intl to Sydney Kingsford Smith by plane?

    A flight from Louisville Intl to Sydney Kingsford Smith will travel around 9284.6 mi. A reasonable flight in good conditions will take 21h 25m.

  • When did momondo last update prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport?

    Prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport?

  • How old do you have to be to fly from Louisville Intl Airport to Sydney Kingsford Smith Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Sydney Kingsford Smith Airport.

  • What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

    The required travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Louisville to Sydney?

Best airlines flying from Louisville to Sydney

Compare and see reviews for airlines that fly from Louisville to Sydney with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $662Free CancellationRating
7.8
8,462 reviews
Search Delta flights
United AirlinesPriceFrom $973Free CancellationRating
7.4
9,961 reviews
Search United Airlines flights

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Bondi Beach
Penrith
Wollongong
Katoomba
Cronulla
Leura
Randwick
Lithgow
Coogee
Manly
Terrigal
Charlestown
Swansea

Why use momondo?

Why should I use momondo to find a flight deal from Louisville to Sydney?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Louisville to Sydney for you.

Can I find flights from Louisville to Sydney with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Louisville to Sydney flights to just show those with flexible booking policies.

How can momondo help me find flights from Louisville to Sydney?

momondo provides multiple filters to help you find the best flight to Sydney from Louisville. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Louisville to Sydney right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Louisville to Sydney now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Sydney and let you know when they change.

An easier way to manage your Sydney trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sun 8/9
Sun 8/16
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Australia